Answer: The next train will arrive at 4:46 P.M.
Solution:
The trains arrive regurlaly. We can find the minutes between arrivals substracting two consecutive arrivals:
4:02 P.M. - 3:40 P.M. = 22 minutes or
4:24 P.M. - 4:02 P.M. = 22 minutes
Then the next arrival is in 22 minutes:
4:24 P.M. + 22 minutes = 4:46 P.M.
